608591 has 2 divisors, whose sum is σ = 608592. Its totient is φ = 608590.

The previous prime is 608581. The next prime is 608593. The reversal of 608591 is 195806.

608591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 608591 - 2⁶ = 608527 is a prime.

Together with 608593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304295 + 304296.

It is an arithmetic number, because the mean of its divisors is an integer number (304296).

2⁶⁰⁸⁵⁹¹ is an apocalyptic number.

608591 is a deficient number, since it is larger than the sum of its proper divisors (1).

608591 is an equidigital number, since it uses as much as digits as its factorization.

608591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 608591 is about 780.1224262896. The cubic root of 608591 is about 84.7439120475.

The spelling of 608591 in words is "six hundred eight thousand, five hundred ninety-one".